Re: Nitrogen in tires?

Posted by buickanddeere on November 22, 2004 at 13:39:11 from (192.75.48.150):

In Reply to: Nitrogen in tires? posted by Rauville on November 22, 2004 at 04:26:32:

Nitrogen is used as it's the cheapest non toxic gas that doesn't support combustion inside an aircraft tire.
It's cheap little bit of extra safety incase engine braking isn't available upon landing. And the brakes/tires have to absorb all the kenetic energy and convert it to heat.
The tires may get hot enough to start burning inside if "air" is used. The outside of the tire will cooldown faster being out in the open. At speed the flames from surface friction heat will be blown out anyways
The tire saftey plugs blow out too early if the tires begin to burn inside & steering control will lost .
Even when filled with nitrogen and the tires get hot enough to blow thier plugs from heat/pressure. The excaping gas is inert and will provide a wee bit of flame supression/heat absorbsion.

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